splitrsBuilder.add(splitr);
      characteristics &= splitr.characteristics();
      estimatedSize = LongMath.saturatedAdd(estimatedSize, splitr.estimateSize());
    }
    return StreamSupport.stream(
            CollectSpliterators.flatMap(
                splitrsBuilder.build().spliterator(),
                splitr -> (Spliterator<T>) splitr,
                characteristics,
                estimatedSize),

      }
    }
  }

  /**
   * Test for 2-bit characteristics. A characteristic is a delta in the input which is repeated in
   * the output. For example, if f() is a block cipher and c is a characteristic, then f(x^c) =
   * f(x)^c with greater than expected probability. The test for funneling is merely a test for
   * 1-bit characteristics.
   *

      }
    }
  }

  /**
   * Test for 2-bit characteristics. A characteristic is a delta in the input which is repeated in
   * the output. For example, if f() is a block cipher and c is a characteristic, then f(x^c) =
   * f(x)^c with greater than expected probability. The test for funneling is merely a test for
   * 1-bit characteristics.
   *

   * BufferedReader#lines()}.
   *
   * <p><b>Java 25+ users:</b> If the input is a {@link Reader}, you may prefer {@link
   * Reader#readAllLines()}. The two may have different performance characteristics for different
   * {@link Reader} classes and Java versions, but both methods read the entire input into memory
   * immediately, so we discourage use of both when memory usage is a concern.
   *

    return spliteratorWithCharacteristics(SPLITERATOR_CHARACTERISTICS);
  }

  @GwtIncompatible("Spliterator")
  Spliterator<E> spliteratorWithCharacteristics(int characteristics) {
    return CollectSpliterators.indexed(size(), characteristics, this::get);
  }

  @Override
  int copyIntoArray(@Nullable Object[] dst, int offset) {
    // this loop is faster for RandomAccess instances, which ImmutableLists are

import java.util.AbstractSet;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;

/**
 * A {@link Map} that combines the characteristics of an array.
 *
 * @author higa
 * @param <K> the type of keys
 * @param <V> the type of values
 *
 */
public class ArrayMap<K, V> extends AbstractMap<K, V> implements Map<K, V>, Cloneable, Externalizable {

  public void testNotDistinctEntrySpliterator() {
    ImmutableListMultimap<String, String> multimap =
        ImmutableListMultimap.of("foo", "bar", "foo", "bar");
    assertThat(multimap.entries().spliterator().characteristics() & Spliterator.DISTINCT)
        .isEqualTo(0);
  }

  public void testInverseMinimizesWork() {
    ImmutableListMultimap<String, Character> multimap =
        ImmutableListMultimap.<String, Character>builder()